Serial.begin and Baud Rate
Open the USB channel at a matching speed.
A Two-Way Channel
Your board can talk to your computer over the same USB cable that powers it. That conversation is called Serial communication. 🔌
Why Serial Matters
A microcontroller has no screen, so Serial is how you peek inside it. You print messages and watch them live on your computer.
All lessons in this course
- Serial.begin and Baud Rate
- Serial.print vs println
- Watch Sensor Values Live
- Read Commands You Type